A vulnerability was determined in Artifex MuPDF up to 1.28.0. The impacted element is the function fz_subset_cff_for_gids of the file subset-cff.c of the component CFF Index Handler. This manipulation causes out-of-bounds read. The attack can only be executed locally. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through a bug report but has not responded yet.

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

Access Vector Local

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Artifex MuPDF affected
Version Status Constraints
1.0 affected —
1.1 affected —
1.2 affected —
1.3 affected —
1.4 affected —
1.5 affected —
1.6 affected —
1.7 affected —
1.8 affected —
1.9 affected —
1.10 affected —
1.11 affected —
1.12 affected —
1.13 affected —
1.14 affected —
1.15 affected —
1.16 affected —
1.17 affected —
1.18 affected —
1.19 affected —
1.20 affected —
1.21 affected —
1.22 affected —
1.23 affected —
1.24 affected —
1.25 affected —
1.26 affected —
1.27 affected —
1.28.0 affected —

No data.

No data.

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Vendors Products
Artifex Subscribe
Mupdf Subscribe

Project Subscriptions

Vendors Products
Artifex Subscribe
Mupdf Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://artifex.com/ cve-icon cve-icon
https://bugs.ghostscript.com/show_bug.cgi?id=709328 cve-icon cve-icon
https://github.com/biniamf/pocs/tree/main/mupdf-cff-indexload-oobread cve-icon cve-icon
https://vuldb.com/submit/802590 cve-icon cve-icon
https://vuldb.com/vuln/359840 cve-icon cve-icon
https://vuldb.com/vuln/359840/cti cve-icon cve-icon
History

Tue, 28 Apr 2026 06:30:00 +0000

Type Values Removed Values Added
Description A vulnerability was determined in Artifex MuPDF up to 1.28.0. The impacted element is the function fz_subset_cff_for_gids of the file subset-cff.c of the component CFF Index Handler. This manipulation causes out-of-bounds read. The attack can only be executed locally. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through a bug report but has not responded yet.
Title Artifex MuPDF CFF Index subset-cff.c fz_subset_cff_for_gids out-of-bounds
First Time appeared Artifex
Artifex mupdf
Weaknesses CWE-119
CWE-125
CPEs cpe:2.3:a:artifex:mupdf:*:*:*:*:*:*:*:*
Vendors & Products Artifex
Artifex mupdf
References
Metrics cvssV2_0

{'score': 1.7, 'vector': 'AV:L/AC:L/Au:S/C:P/I:N/A:N/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 3.3, 'vector': 'CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 4.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-04-28T06:00:18.874Z

Reserved: 2026-04-27T17:00:07.970Z

Link: CVE-2026-7233

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-28T07:16:04.067

Modified: 2026-04-28T07:16:04.067

Link: CVE-2026-7233

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-28T08:30:13Z

Weaknesses